Cedric Nunn, Call and response [on the occasion of the Exhibition Cedric Nunn: Call and Response ; exhibition venues August 27 - October 22, 2011, Galerie Seippel, Cologne, Germany ... November 7, 2012 - January 27, 2013, Pretoria Art Museum, Pretoria, South Africa] - Seippel, Ralf-Peter; Nunn, Cedric 1957- (Hatje Cantz, 2012)